Accessory for transmitting power from truck-engines



C. C. JACOBE.

ACCESSORY FOR TRANSMITTING POWER FROM TRUCK ENGINES.

APPLICATION FILED JULY I4, 1919.

1 35 8, 2 1 Q m Patented Nova 9 19%.

2 SHEETSSHEET l.

TNVENTOR mzyw ATTORNEY c. 0. JAQOBE. ACCESSORY FOR TRANSMITTING POWER FROM TRUCK ENGTNES.

APPLTGATION FILED JULY 14, 1919.

Patented Nov" 9, 1920;

2 SHEETSSHEET 2.

ATTORN EY UNITED STATES PATENT OFFICE.

CHARLES C. JACOBE, OF RIVERDALE, CALIFORNIA.

Application filed July 14,

To all whom it may concern:

Be it known that I, CHARLES C. JACOBE, a citizen of the United States, and resident of Riverdale in the county of Fresno and the State of alifornia, have invented a new and useful Im rovement in Accessories for Transmitting ower from Truck-Engines, of which the following is a specification.

My invention relates to an attachment for trucks, and more particularly to a device whereby the power plant on the truck can be used for driving stationary machinery at will, as for instance, a threshing machine, wood saw, or similar device, and at the same time the power can be readily shifted so that the truck can be used in its normal manner. The special object is to have an attachment for a truck which can readily be thrown in gear so that it can readily be used for trucking purposes, and when it is desired the attachment I have invented can be thrown in gear so that the power'plant will operate other machines.

have accomplished these, and other objects which will hereinafter appear by means of the device described on the inclosed drawings which are hereby made a part of this specification, in which Figure 1 is a top plan view of the rear part of the chassis of a truck showing my invention attached thereto. l ig. 2 is a top plan view of the front end of the chassis ofa truck showing my invention, and Fig. 3 is a view of a detailed portion of the gear shifting device. I

In said drawing B repi'esents the frame of the truck, having the parallel beams B and B. C is the rear axle, and sup orts drive wheels D and D C is the rent axle and supports wheels I) and. D E is the differential housing of the truck, covering any of the usual forms of differentials used on trucks, which drives duplicate shafts F which terminate at each end with a gear G. is a gear attached to each of the drive wheels D. and D and K is a chain adapted to transmit power from the drivin gear G to the wheels 1) and D is a driving shaft extending from theengine or power plant to the difl'erential inclo'sed in the housing E. is an auxilia housing attached to frame B approxlmately parallel with the, rear housing E, and between the power plant N and the rear axle housing. U and O are shafts within the housing L, and car Specification 01"Letters Patent.

' Patented Nov. 9, 1920. 1919. Serial No. 310,677.

ried in bearings V and V which hold them on a common center line a spaced distance apart. At the ends of the shafts O and O which are nearest to ether, I have attached beveled gears P and and at the o posite ends have attached pulleys Q and Cf. R is the drive shaft extending from the engine N to an ordinary differential hereinbefore referred to, within the rear axle housing In assembling this device the housing L is adjusted so that the drive shaft R will pass transversely through the approximate center of the housing L, and through the space midway between the ends of the shafts O and 0 The portion of the drive shaft indicated as R, which passes through the housing L, is formed square as shown on the drawings, but can be constructed in any suitable shape for the purposes hereinafter disclosed. S is a driving gear constructed to slide on the square portion R of the driving shaft, and so that it will rotate with the shaft. Driving gear S is adapted to mesh with beveled gears P and P and to be engaged with them at will. When thus engaged the power from the power plant will turn the axles O and O and with them rotate pulleys and Q ear S is constructed with groove S into which a release collar, or yoke S is fitted so that the gear will rotatetherein. T is a rod attached to yoke or collar S at one end, and to a lever T at the other end, so that by the operation of lever T the gear S can be thrown in lgear or out of gear with said beveled gears and P, the purpose bein device is to be used as a truck, the pulleys and Q will not be rotating, and when it is desired to transmit power through pulle s Q and Q it can be done.

*V is a housing covering the ordinary form of transmission gears for a truck. W is the rod by which the' transmission gears are operable. I

Z is a device for transferring the power from the pulleys Q and Q onto a shaft, or to one pulley, and consists of the following mechanlcal elements: 5 is a main shaft having a center pulley 6, and on eachside thereof a pulley 3 and 3 which are on line with pulleys Q and Q The pulleys Q and 3 are connected with a straight belt U and pill leys Q and 3 are connected with a crossed belt U This is necessary because with the construction noted the pulleys Q and Q will a peripheral g that when the i rotate in opposite directions. The device Z can be dispensed within actual use, and one of the pulleys Q or Q can be allowed to run idle, or each of the pulleys Q and Q can transmit power to different machines, or to different parts of the same machine. The applicant has made use of it in this latter form by driving the cylinder of a threshing machine with one pulley, and the other portions of the machinery of the same thresher with the other pulley.

I claim as new, and ask for Letters Patent upon 1. In combination with a truck having a power plant, driving wheels, and a driving shaft adapted to transmit power from the power plant to the driving wheels, said driving shaft being formed with a squared portion between the ends thereof, a driving gear slidably fitted on said squared portion of the driving shaft, two shafts journaled so that they have a common center line, gears attached at one end of each of said shafts adapted to mesh with the driving gear, and means for sliding the driving gear so that it will disengage with said shaft gears, and pulleys on the ends of the shafts opposite to the gears, substantially as described, and for the purposes set-forth.

weenie gear adapted to slide on a portion of the driving shaft between the ends thereof, means for keeping said driving gear from rotating on said shaft, two driven shafts journaled so they have a common center line at approximately right angles to the driving shaft, each of said driven shafts having gears of uniform size adapted to engage and disengage contemporaneously with the sliding driving gear, pulleys attached to the driven shafts, an auxiliary shaft journaled parallel to the driven shafts, pulleys on the auxiliary shaft in line with the pulleys on the driven shafts, belt means for transmitting power from the driven shaft pulleys to the pulleys on the auxiliary shaft, one of said belts running straight, and the other crossed, a main pulley on the auxiliary shaft between the ends thereof, all substantially as described and for the purposes set forth.

CHARLES C. JACOBE.

Witnesses:

J. F. REYNOLDS, ALPHA JAooBn. 

